Anti-airstrike and anti-jamming energy-saving hydraulic system and control method of rock drill

A hydraulic system and rock drill technology, which is applied in mechanical equipment, fluid pressure actuators, servo motors, etc., can solve problems such as damage to rock drills, dry drilling of rock drills, and reduced work efficiency
CN107061395BInactive Publication Date: 2018-07-24宜昌精博智工科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
宜昌精博智工科技有限公司
Publication Date
2018-07-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a rock drill anti-air strike, anti-jamming energy-saving hydraulic system and a control method, which include a hydraulic pump station, and the hydraulic pump station is connected with a forward feed oil pipe and a reverse feed oil pipe through a feed reversing valve; The hydraulic pump station is connected to the impact oil pipe and the low-pressure impact oil pipe through the impact reversing valve; a first hydraulic control reversing valve is installed on the oil circuit behind the impact oil pipe, and the liquid control end of the first hydraulic control reversing valve passes through The first hydraulic control oil pipe is connected to the forward feed oil pipe, and the first hydraulic control reversing valve is connected to the impact oil cylinder; the forward feed oil pipe is connected to the feed oil cylinder through the first reversing valve and the second reversing valve connected. The hydraulic system controls the impact of the rock drill with the feed pressure, so as to ensure that the rock drill will not run dry, prolong the service life of the equipment, and reduce energy loss.
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Description

technical field

[0001] The invention belongs to the field of rock drilling equipment, and in particular relates to an anti-airstrike, anti-jamming and energy-saving hydraulic system and a control method for a rock drilling machine. Background technique

[0002] At present, the impact, feed and precession systems of most rock drills on the market are independent of each other, and adopt independent hydraulic control systems, so there are the following defects:

[0003] (1) When the impact drill bit does not touch the rock formation or the contact force is not enough or there is no normal feed, push the impact control handle, and the impact action of the rock drill will start, which will cause the rock drill to hit empty, that is, the impact at this time is doing Useless work has no effect on rock drilling; if long-term air drilling will cause great damage to the rock drilling machine, shorten the service life of the rock drilling machine, increase construction costs; and also...

Claims

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